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Published on: February 22, 2020
NLK is a key regulator of proliferation and migration in gallbladder carcinoma cells
Zhujun Tan1, Maolan Li, Wenguang Wu
1Department of General Surgery, Xinhua Hospital, Affiliated to School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
Abstract:
Gallbladder cancer (GBC) is one of the most lethal neoplasm and is the fifth most common malignancy of gastrointestinal tract. The prognosis of gallbladder cancer is extremely terrible partially due to metastasis. Thus, understanding the molecular pathways controlling metastasis of this lethal disease may provide new targets for targeted therapeutic approach. In this study, we investigated the function of nemo-like kinase (NLK) in GBC growth and migration. Lentivirus-mediated siRNA was employed to alleviate the expression level of NLK in GBC cell lines (GBC-SD and SGC-996). Real-time PCR and western-blot analysis demonstrated that both mRNA and protein levels of NLK in GBC-SD and SGC-996 cells were decreased after infection with NLK-siRNA-expressing lentivirus (Lv-shNLK). The proliferation and in vitro tumorigenesis (colony formation) ability as well as migration of GBC-SD and SGC-996 cells with low NLK expression decreased significantly. Our results suggested that NLK is a key regulator involved in proliferation and migration of GBC, and it could be used as a potential therapeutic target for GBC.
Insights
Nemo-like kinase (NLK) promotes gallbladder cancer (GBC) growth and metastasis. Inhibiting NLK significantly reduced GBC cell proliferation and migration, identifying NLK as a potential therapeutic target for this lethal cancer.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Research
Background:
- Gallbladder cancer (GBC) is a highly lethal gastrointestinal malignancy with a poor prognosis, often due to metastasis.
- Understanding the molecular mechanisms driving GBC metastasis is crucial for developing effective targeted therapies.
Purpose of the Study:
- To investigate the role of nemo-like kinase (NLK) in the proliferation and migration of gallbladder cancer cells.
- To evaluate NLK as a potential therapeutic target for GBC.
Main Methods:
- Utilized lentivirus-mediated siRNA to reduce NLK expression in GBC cell lines (GBC-SD and SGC-996).
- Quantified NLK mRNA and protein levels using real-time PCR and western-blot analysis.
- Assessed the impact of NLK knockdown on cell proliferation, colony formation, and migration.
Main Results:
- Successful downregulation of both NLK mRNA and protein levels in GBC cells following Lv-shNLK infection.
- Significantly decreased proliferation and in vitro tumorigenesis (colony formation) in GBC cells with reduced NLK expression.
- Markedly inhibited migration capacity of GBC cells with suppressed NLK levels.
Conclusions:
- NLK plays a critical role in regulating the proliferation and migration of gallbladder cancer.
- NLK represents a promising molecular target for developing novel therapeutic strategies against GBC.
